Fancy Lala (1998)

Miho Shinohara is an imaginative elementary school girl that dreams of becoming a manga artist one day. However, one day a twist of fate throws her for a loop when a mysterious stranger brings her in contact with a a pair of creatures with the appearance of stuffed animals not of this world. In return for befriending them, they give Miho a magical pen with the ability to age her into her mid-teens, as well as make whatever she draws temporarily real. Unrecognizable in her older state, Miho decides to go exploring the city when a modeling/talent agency, desperate to fulfill an important contract, beg her to take on a modeling job, putting Miho on her first steps to stardom. Giving her teenage alter-ego the name Fancy Lala, she eventually grows from working as a small time model into a famous actress and singer. However, along the way, she constantly learns about the perils of adulthood, childhood, stardom and the limitations of her magic.